Tunnel reinforcement structure

Abstract

The present application relates to a tunnel reinforcement structure, comprising a horizontally arranged bottom plate, a support shell provided on the bottom plate, a plurality of support shells being equidistantly arranged along the circumference, a driving structure for driving the support shells to move provided on the bottom plate, a movable groove being provided inside two adjacent support shells, an inner plate being slidably connected inside the movable groove, one end of the inner plate being located inside one of the support shells, the other end of the inner plate being located inside another adjacent support shell, and the inner plate and the support shells being slidably connected. The present application has the effect of reducing the impact of rock and soil blocks falling off the tunnel during the support reinforcement process on the construction inside the tunnel, thereby improving the safety of construction workers.

Description

Technical Field

[0001] The present application relates to the field of construction auxiliary equipment, and in particular to a tunnel reinforcement structure. Background Art

[0002] Tunnels are very common in transportation, such as train tunnels and mountain tunnels. Tunnels are often semicircular in shape with two sides facing vertically. Because heavy objects, such as mountains or roads, are placed above the tunnels, they are subject to constant loads and are prone to cracking or deformation. This necessitates tunnel reinforcement and maintenance.

[0003] In order to prevent landslides, double or multi-layer steel arch frames are often used for reinforced support. That is, on the basis of the original "sprayed concrete + steel arch frame", one or two layers of "sprayed concrete + steel arch frame" reinforcement structure are added to the outer layer to maintain the initial stability of the surrounding rock.

[0004] Regarding the above-mentioned related technologies, the inventor believes that when tunnels are currently reinforced using tunnel reinforcement devices, steel structures and concrete are often used alone to support and fix the basic shape of the tunnel to prevent tunnel collapse. However, in actual use, since the tunnel requires the assistance of staff using equipment during the continuous mining process, the existing tunnel reinforcement device still has falling rocks and soil blocks in the gaps of its frame after the tunnel is reinforced, making it difficult to guarantee the safety of construction workers in the tunnel. Summary of the Invention

[0005] In order to reduce the impact of rocks and soil blocks falling off the tunnel during the support and reinforcement process on the internal construction of the tunnel, thereby improving the safety of construction workers, the present application provides a tunnel reinforcement structure.

[0006] This application provides a tunnel reinforcement structure, which adopts the following technical solutions:

[0007] A tunnel reinforcement structure includes a horizontally arranged base plate, a support shell is arranged on the base plate, and multiple support shells are arranged equidistantly along the circumference. A driving structure for driving the support shell to move is provided on the base plate, and a moving groove is opened inside two adjacent support shells. The interior of the moving groove is slidably connected to an inner plate, one end of the inner plate is located inside one of the support shells, and the other end of the inner plate is located inside the other adjacent support shell, and the inner plate and the support shell are slidably connected.

[0008] By adopting the above technical solution, the supporting shell is driven to move by the driving structure, and the inner plate located inside the supporting shell extends from the inside of the supporting shell to block the gap between the two adjacent supporting shells, thereby reducing the impact of rocks and soil blocks falling off the tunnel during the support and reinforcement process, thereby reducing the impact on the internal construction of the tunnel, and thus improving the safety of construction workers.

[0009] Optionally, the driving structure includes a driving shell fixedly connected to the base plate, and the driving shells are provided in plurality and are respectively arranged opposite to the supporting shells. A driving screw is threadedly connected to one side of the driving shell close to the supporting shell, and the driving screw is rotatably connected to the supporting shell. A linkage structure is provided on the base plate for simultaneously driving the driving screw to rotate.

[0010] By adopting the above technical solution, the driving screw is driven to rotate through the linkage structure, and the driving screw extends from the inside of the driving shell, so that the driving screw drives the supporting shell to move, adjusts the distance between the supporting shell and the base plate, and supports the inner wall of the tunnel through the supporting shell.

[0011] Optionally, the linkage structure includes a synchronous ring gear coaxially connected to the drive housing, the synchronous ring gear is threadedly connected to the drive screw, one side of the synchronous ring gear is meshed with a first linkage gear, a linkage rod is coaxially fixedly connected to the first linkage gear, the side of the linkage rod facing away from the first linkage gear is coaxially fixed with a second linkage gear, a drive ring gear is rotatably connected to the base plate, the drive ring gear is meshed with the second linkage gear, and a first driving member that drives the drive ring gear to rotate is fixedly connected to the base plate.

[0012] By adopting the above technical solution, the first driving member drives the driving ring gear to rotate, and then drives the ring gear to drive the second linkage gear to rotate, so that the second linkage gear drives the linkage rod to rotate, and the linkage rod drives the first linkage gear to rotate, so that the first linkage gear drives the synchronous ring gear to rotate, and the synchronous ring gear drives the driving screw to extend from the inside of the drive housing to adjust the position of the support housing.

[0013] Optionally, a dustproof shell is fixedly connected to the base plate, and the dustproof shell cover is arranged on the outside of the driving ring gear and the second linkage gear.

[0014] By adopting the above technical solution, the dustproof shell provided is used to reduce the dust generated during tunnel construction from entering the interior of the dustproof shell and affecting the meshing position of the driving ring gear and the second linkage gear, thereby improving the service life of the entire mechanism.

[0015] Optionally, the linkage rod includes a coaxially arranged outer tube and an inner rod located inside the outer tube, the inner rod and the outer tube being rotatably connected, the inner side wall of the outer tube being coaxially provided with an annular groove, the inner side wall of the outer tube being provided with a locking groove relative to the position of the annular groove, the locking groove being relatively connected to the annular groove, and the inner rod being fixedly connected with a locking block relative to the position of the annular groove, the locking block being able to slide relatively inside the locking groove, and when the locking block is relative to the locking groove, the locking block can extend into the interior of the locking groove, and the inner side wall of the outer tube being fixedly connected with an electromagnet relative to the position of the locking groove, and when the electromagnet is energized, the electromagnet can be relatively adsorbed with the locking block.

[0016] By adopting the above technical solution, when the electromagnet is not energized, the locking block is located inside the annular groove, and the locking block can rotate relatively inside the annular groove, the second linkage gear can drive the outer tube to rotate, and the outer tube cannot drive the inner rod to rotate, so that different support shells can be adjusted; when the electromagnet is energized, the locking block is located inside the locking groove, and when the second linkage gear drives the outer tube to rotate, the outer tube can drive the inner rod to rotate, and then drive the first linkage gear to rotate.

[0017] Optionally, the inner plate includes an ejector plate facing away from the bottom plate and a support plate close to the bottom plate. A plurality of ejector plates are arranged on the support plate, and the ejector plates and the support plates are relatively connected by elastic members. When the elastic member is fully compressed, the ejector plate can extend into the interior of the support shell. When the elastic member is in a free state, the side wall of the ejector plate facing away from the support plate is flush with the side wall of the support shell facing away from the bottom plate.

[0018] By adopting the above technical solution, when the inner plate is located inside the supporting shell, the ejector plate compresses the elastic part, and when the inner plate slides out from the inside of the supporting shell, the ejector plate extends toward the side close to the tunnel side wall under the push of the elastic part, and the ejector plate and the side wall of the supporting shell are cleared, and the tunnel side wall is supported by the ejector plate.

[0019] Optionally, a side wall of the support shell is provided with an inclined surface at one end relative to the ejection plate, and the inclined surface is gradually inclined from a side close to the ejection plate to a side away from the ejection plate toward a side close to the bottom plate.

[0020] By adopting the above technical solution, when the inner plate retracts into the interior of the supporting shell, the ejector plate slides against the inclined surface, and the guidance of the inclined surface can push the ejector plate toward the side close to the supporting plate, compressing the elastic part, thereby facilitating the ejector plate to retract into the interior of the supporting shell.

[0021] Optionally, an air blowing pipe is fixedly connected to the interior of the support shell, and one end of the air blowing pipe extends from the side wall of the support shell and is arranged opposite to the ejection plate.

[0022] By adopting the above technical solution, air is blown to the ejector plate through the air blowing pipe, thereby facilitating the cleaning of impurities at the ejector plate position and reducing the ejector plate from getting stuck due to impurities when it retracts into the supporting shell.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The driving structure drives the support shell to move, and the inner plate located inside the support shell extends from the inside of the support shell to block the gap between the two adjacent support shells, thereby reducing the impact of rock and soil blocks falling off the tunnel during the support and reinforcement process, thereby reducing the impact on the internal construction of the tunnel and improving the safety of construction workers.

[0025] 2. The first driving member drives the driving ring gear to rotate, and then drives the ring gear to drive the second linkage gear to rotate, so that the second linkage gear drives the linkage rod to rotate, and the linkage rod drives the first linkage gear to rotate, so that the first linkage gear drives the synchronous ring gear to rotate, and the synchronous ring gear drives the driving screw to extend from the inside of the drive housing to adjust the position of the support housing.

[0026] 3. When the electromagnet is not energized, the locking block is located inside the annular groove and can rotate relatively inside the annular groove. The second linkage gear can drive the outer tube to rotate, and the outer tube cannot drive the inner rod to rotate, so that different support shells can be adjusted; when the electromagnet is energized, the locking block is located inside the locking groove, and when the second linkage gear drives the outer tube to rotate, the outer tube can drive the inner rod to rotate, and then drive the first linkage gear to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a tunnel reinforcement structure in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the internal structure of a dustproof shell of a tunnel reinforcement structure in an embodiment of the present application;

[0029] Figure 3 is a cross-sectional view of a supporting shell of a tunnel reinforcement structure according to an embodiment of the present application;

[0030] Figure 4 This is a schematic structural diagram of a driving structure of a tunnel reinforcement structure in an embodiment of the present application;

[0031] Figure 5This is a schematic structural diagram of a driving structure of a tunnel reinforcement structure in an embodiment of the present application;

[0032] Figure 6 It is a cross-sectional view of a linkage rod of a tunnel reinforcement structure in an embodiment of the present application.

[0033] Explanation of the accompanying drawings: 1. Base plate; 11. Horizontal plate; 12. Vertical plate; 13. Dustproof shell; 2. Support structure; 21. Support shell; 211. Moving groove; 212. Inclined surface; 22. Inner plate; 221. Support plate; 222. Ejector plate; 223. Spring; 23. Blowing pipe; 3. Driving structure; 31. Fixed plate; 32. Driving shell; 321. Synchronous ring gear; 33. Driving screw; 34. First linkage gear; 35. Linkage rod; 351. Outer tube; 3511. Ring groove; 3512. Locking groove; 352. Inner rod; 3521. Sliding groove; 3522. Locking block; 353. Electromagnet; 36. Second linkage gear; 37. Driving ring gear. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a tunnel reinforcement structure. Figure 1 、 Figure 2 A tunnel reinforcement structure includes a horizontally arranged base plate 1, an arc-shaped support structure 2 is arranged above the base plate 1, the inner wall of the tunnel is supported by the support structure 2, and a driving structure 3 is arranged between the support structure 2 and the base plate 1, and the driving structure 3 can drive the support structure 2 to move, and then adjust according to the diameter of the inner wall of the tunnel.

[0036] The bottom plate 1 includes a horizontally arranged transverse plate 11 , and two vertical plates 12 are arranged opposite to each other below the transverse plate 11 . The vertical plates 12 are fixedly connected to the transverse plate 11 .

[0037] Reference Figure 2 、 Figure 3 The support structure 2 includes a support shell 21 arranged in an arc shape. A plurality of support shells 21 are arranged equidistantly along the circumference, and a movable groove 211 is opened between two opposite support shells 21. The movable groove 211 is an arc structure arranged coaxially with the support shell 21. The interior of the movable groove 211 is slidably connected with an inner plate 22. The two ends of the inner plate 22 are respectively located inside the movable grooves 211 of two adjacent support shells 21, and the gap between the two support shells 21 is closed by the inner plate 22.

[0038] The inner plate 22 includes a support plate 221 located on the side close to the bottom plate 1. The support plate 221 is an arc-shaped structure arranged coaxially with the slide groove, and an ejector plate 222 is arranged on the side of the support plate 221 away from the bottom plate 1. A plurality of ejector plates 222 are arranged at equal distances along the arc direction of the support plate 221, and a spring 223 is arranged between the ejector plate 222 and the support plate 221. One end of the spring 223 is fixedly connected to the ejector plate 222, and the other end of the spring 223 is fixedly connected to the support plate 221.

[0039] When the spring 223 is fully compressed, the ejection plate 222 can extend into the interior of the slide groove, and the ejection plate 222 is slidingly connected to the support shell 21. When the spring 223 is in a free state, the side wall of the ejection plate 222 facing away from the support plate 221 is flush with the side wall of the support shell 21 facing away from the bottom plate 1.

[0040] An inclined surface 212 is provided on the side wall of the support shell 21 relative to the ejection plate 222, and the inclined surface 212 is gradually inclined toward the side close to the base plate 1 from the side close to the ejection plate 222 to the side away from the ejection plate 222, so that when the ejection plate 222 moves from the interior of the two adjacent support shells 21 into the interior of the support shell 21, it can enter the interior of the support shell 21 through the guidance of the inclined surface 212.

[0041] The side wall of the supporting shell 21 is fixedly connected with an air blowing pipe 23, one end of the air blowing pipe 23 extends from the side wall of the supporting shell 21, and the air blowing pipe 23 is arranged opposite to the ejection plate 222. The air blowing pipe 23 is fixedly connected to the supporting shell 21, and two adjacent air blowing pipes 23 are connected by a hose.

[0042] Reference Figure 1 、 Figure 3 The drive structure 3 includes a fixed plate 31 fixed to the base plate 1. The fixed plate 31 is located at the center of the base plate 1, and the connection between the fixed plate 31 and the base plate 1 is located at the center of the support housing 21. A drive housing 32 is fixedly connected to the fixed plate 31. Multiple drive housings 32 are arranged equidistantly along the circumference of the support housing 21, and the drive housings 32 and the support housings 21 are opposite each other. A drive screw 33 is coaxially disposed on the end of the drive housing 32 facing away from the fixed plate 31. The drive screw 33 is threadedly connected to the drive housing 32 and is rotationally connected to the support housing 21.

[0043] The driving housing 32 is rotatably connected to the driving screw 33 with a synchronous ring gear 321. The synchronous ring gear 321 is threadedly connected to the driving screw 33, and the outer side of the synchronous ring gear 321 is meshedly connected to the first linkage gear 34. A linkage rod 35 is coaxially fixedly connected to the first linkage gear 34, and a second linkage gear 36 is coaxially fixedly connected to the side of the linkage rod 35 facing away from the first linkage gear 34.

[0044] A drive ring gear 37 is rotatably connected to the fixed plate 31 relative to the second linkage gear 36. The axis of the drive ring gear 37 is horizontally arranged, and multiple second linkage gears 36 are respectively meshed with the drive ring gear 37. A rotary motor is fixedly connected to the base plate 1 relative to the drive ring gear 37. The motor shaft of the rotary motor is fixedly connected to the drive ring gear 37. The rotary motor drives the drive ring gear 37 to rotate, which in turn drives the second linkage gear 36 to rotate. The second linkage gear 36 drives the linkage rod 35 to rotate, which in turn drives the first linkage gear 34 to rotate. The first linkage gear 34 then drives the synchronous ring gear 321 to rotate. The synchronous ring gear 321 drives the drive screw 33 to extend from the interior of the drive housing 32, driving the support housing 21 to move.

[0045] Reference Figure 5 、 Figure 6 The linkage rod 35 includes a coaxially arranged outer tube 351, which is fixedly connected to the second linkage gear 36. The outer tube 351 is coaxially rotatably connected to the inner rod 352 on the side of the outer tube 351 near the first linkage gear 34, and the inner rod 352 is fixedly connected to the first linkage gear 34. An annular groove 3511 is coaxially defined on the inner sidewall of the outer tube 351 relative to the position of the inner rod 352. The annular groove 3511 is an annular structure, and a locking groove 3512 is also defined on the inner sidewall of the outer tube 351 relative to the position of the annular groove 3511. The locking groove 3512 is relatively connected to the annular groove 3511. A sliding groove 3521 is provided on the side wall of the inner rod 352 relative to the annular groove 3511. The sliding groove 3521 is provided along the axial direction of the inner rod 352. A locking block 3522 is slidably connected to the interior of the sliding groove 3521. The locking block 3522 extends from the interior of the sliding groove 3521, and the end of the locking block 3522 facing away from the inner rod 352 extends into the interior of the annular groove 3511. When the locking block 3522 is opposite to the locking groove 3512, the locking block 3522 can extend into the interior of the locking groove 3512.

[0046] The side wall of the outer tube 351 is fixedly connected to the side of the locking groove 3512 away from the annular groove 3511 with an electromagnet 353. When the electromagnet 353 is energized, the electromagnet 353 and the locking block 3522 are opposite to each other, and the electromagnet 353 and the locking block 3522 can be relatively attracted.

[0047] When the magnets are relatively attracted, the locking block 3522 is located inside the locking groove 3512, so that when the second linkage gear 36 drives the outer tube 351 to rotate, the outer tube 351 can synchronously drive the inner rod 352 to rotate; and when the electromagnet 353 is powered off, the locking block 3522 extends into the inside of the annular groove 3511, and the second linkage gear 36 drives the outer tube 351 to rotate, so that the locking block 3522 is located inside the annular groove 3511 and rotates relatively, and the outer tube 351 cannot drive the inner rod 352 to rotate, and then according to the relative cooperation between the locking block 3522 and the locking groove 3512, the driving ring gear 37 can independently drive different support shells 21 to move.

[0048] Reference Figure 1 、 Figure 4 A dustproof shell 13 is fixedly connected to the position of the base plate 1 relative to the driving ring gear 37. The dustproof shell 13 is arranged on the outside of the driving ring gear 37 and the second linkage gear 36, and the dustproof shell 13 is rotatably connected to the linkage rod 35. The setting of the dustproof shell 13 can reduce the influence of external dust entering the interior of the dustproof shell 13 on the position of the driving ring gear 37 and the second linkage gear 36.

[0049] The implementation principle of a tunnel reinforcement structure in an embodiment of the present application is: the driving ring gear 37 is driven to rotate by a rotating motor. When the locking block 3522 is located inside the locking groove 3512, the driving ring gear 37 drives the second linkage ring gear to rotate, so that the second linkage ring gear drives the outer tube 351 to rotate, and the outer tube 351 drives the inner rod 352 to rotate, and the inner rod 352 drives the first linkage ring gear to rotate, and the first linkage ring gear drives the synchronous ring gear 321 to rotate, so that the synchronous ring gear 321 drives the driving screw 33 to extend from the inside of the driving shell 32, adjusts the movement of the support shell 21, and supports the side wall inside the tunnel through the support shell 21.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tunnel reinforcement structure, characterized in that: The invention comprises a horizontally arranged bottom plate (1), a supporting shell (21) is arranged on the bottom plate (1), a plurality of the supporting shells (21) are arranged equidistantly along the circumference, a driving structure (3) for driving the supporting shells (21) to move is arranged on the bottom plate (1), a moving groove (211) is provided inside two adjacent supporting shells (21), an inner plate (22) is slidably connected inside the moving groove (211), one end of the inner plate (22) is located inside one of the supporting shells (21), and the other end of the inner plate (22) is located inside another adjacent supporting shell (21), and the inner plate (22) and the supporting shell (21) are slidably connected; The inner plate (22) includes an ejector plate (222) on a side facing away from the bottom plate (1) and a support plate (221) on a side close to the bottom plate (1); a plurality of ejector plates (222) are provided on the support plate (221); and the ejector plates (222) and the support plate (221) are relatively connected via an elastic member; when the elastic member is fully compressed, the ejector plate (222) can extend into the interior of the support shell (21); when the elastic member is in a free state, a side wall of the ejector plate (222) facing away from the support plate (221) is flush with a side wall of the support shell (21) facing away from the bottom plate (1); An inclined surface (212) is provided on one end of the side wall of the support shell (21) relative to the ejection plate (222), and the inclined surface (212) is gradually inclined from a side close to the ejection plate (222) to a side away from the ejection plate (222) toward a side close to the bottom plate (1).

2. A tunnel reinforcement structure according to claim 1, characterized in that: The driving structure (3) includes a driving housing (32) fixedly connected to the base plate (1), a plurality of driving housings (32) are provided and are respectively arranged opposite to the supporting housing (21), a driving screw (33) is threadedly connected to a side of the driving housing (32) close to the supporting housing (21), and the driving screw (33) is rotatably connected to the supporting housing (21), and a linkage structure for simultaneously driving the driving screw (33) to rotate is provided on the base plate (1).

3. The tunnel reinforcement structure according to claim 2, characterized in that: The linkage structure includes a synchronous ring gear (321) coaxially connected to the drive housing (32), the synchronous ring gear (321) being threadedly connected to the drive screw (33), one side of the synchronous ring gear (321) being meshed with a first linkage gear (34), a linkage rod (35) being coaxially fixedly connected to the first linkage gear (34), a side of the linkage rod (35) facing away from the first linkage gear (34) being coaxially fixedly connected to a second linkage gear (36), a driving ring gear (37) being rotatably connected to the base plate (1), the driving ring gear (37) being meshed with the second linkage gear (36), and a first driving member for driving the driving ring gear (37) to rotate is fixedly connected to the base plate (1).

4. The tunnel reinforcement structure according to claim 3, characterized in that: A dustproof shell (13) is fixedly connected to the base plate (1), and the dustproof shell (13) is arranged on the outside of the driving gear ring (37) and the second linkage gear (36).

5. The tunnel reinforcement structure according to claim 3, characterized in that: The linkage rod (35) includes a coaxially arranged outer tube (351) and an inner rod (352) located inside the outer tube (351), the inner rod (352) and the outer tube (351) are rotatably connected, the inner side wall of the outer tube (351) is coaxially provided with an annular groove (3511), the inner side wall of the outer tube (351) is provided with a locking groove (3512) at a position relative to the annular groove (3511), the locking groove (3512) is relatively communicated with the annular groove (3511), and the position of the inner rod (352) relative to the annular groove (3511) is fixed. A locking block (3522) is fixedly connected, and the locking block (3522) can slide relatively inside the locking groove (3512). When the locking block (3522) is opposite to the locking groove (3512), the locking block (3522) can extend into the interior of the locking groove (3512). The inner side wall of the outer tube (351) is fixedly connected to the position of the locking groove (3512) with an electromagnet (353). When the electromagnet (353) is energized, the electromagnet (353) can be relatively adsorbed with the locking block (3522).

6. The tunnel reinforcement structure according to claim 1, characterized in that: An air blowing pipe (23) is fixedly connected to the interior of the supporting shell (21), and one end of the air blowing pipe (23) extends from the side wall of the supporting shell (21) and is arranged opposite to the ejection plate (222).

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